CVE-2022-24521

CVE-2022-24521 is a software vulnerability discovered in 2022, characterized by a flaw in the software design or implementation. This specific vulnerability was exploited through modifications to BLF files and was one of four vulnerabilities (including CVE-2022-37969, CVE-2023-23376, and CVE-2023-28252) captured in the wild as zero-days. Zero-day vulnerabilities are software security flaws that are known to the software vendor but have no patch in place to fix them when they are exploited. The exploitation of these vulnerabilities was part of a broader trend identified in the "Windows Common Log File System Driver Elevation Of Privilege Vulnerability". Since 2018, at least thirty-two such vulnerabilities have been discovered, excluding CVE-2023-28252. Notably, three of these vulnerabilities (CVE-2022-24521, CVE-2022-37969, and CVE-2023-23376) were detected in the wild as zero-days, indicating that attackers were able to exploit these vulnerabilities before patches were available. In response to the increasing number of security bugs, Microsoft has released patches for 96 other security bugs as part of April’s Patch Tuesday, including 45 remote code execution vulnerabilities. These efforts underscore the ongoing need for vigilance and swift action in addressing software vulnerabilities, particularly those that can be exploited as zero-days.